- basics:
  - test_doubles.feature
  - allowing_messages.feature
  - expecting_messages.feature
  - partial_test_doubles.feature
  - null_object_doubles.feature
  - spies.feature
  - scope.feature
- verifying_doubles:
  - instance_doubles.feature
  - class_doubles.feature
  - object_doubles.feature
  - dynamic_classes.feature
  - partial_doubles.feature
- configuring_responses:
  - returning_a_value.feature
  - raising_an_error.feature
  - throwing.feature
  - yielding.feature
  - calling_the_original_implementation.feature
  - wrapping_the_original_implementation.feature
  - block_implementation.feature
- setting_constraints:
  - matching_arguments.feature
  - receive_counts.feature
  - message_order.feature
- mutating_constants:
  - stub_defined_constant.feature
  - stub_undefined_constant.feature
  - hide_defined_constant.feature
  - hide_undefined_constant.feature
- working_with_legacy_code:
  - any_instance.feature
  - message_chains.feature
- old_syntax:
  - stub.feature
  - should_receive.feature
  - any_instance.feature
  - stub_chain.feature
  - unstub.feature
- outside_rspec:
  - minitest.feature
  - any_test_framework.feature
  - standalone.feature
- Changelog
